– blinks red twice:
Engine is too hot.
Set the appliance switch to "0".
Allow device to cool down.
Set the appliance switch to "I".
– blinks red thrice:
Fault in the voltage supply.
Check main connections and mains
fuse.
– blinks red four times:
Excessive power consumption.
Call Customer Service.
Appliance is not running
Operational readiness period has ex-
pired. Indicator lamp is blinking green.
Switch on/off the device switch again.
Check connection cable for damages.
Call Customer Service in case of elec-
trical defects.
Pressure does not build up in the
appliance
Set nozzle to "High pressure".
Clean/ replace nozzle.
Clean the fine filter; replace it, if neces-
sary.
Deaerate the appliance (see "Start-up")
Check water supply level (refer to tech-
nical data).
Check all inlet pipes to the pump.
Contact Customer Service if needed.
Pump leaky
3 drops per minute are permitted and can
come out from the lower side of the appli-
ance. Call Customer Service if there is
heavy leakage.
With stronger leak, have device
checked by customer service.
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Pump is vibrating
Check suction pipes for water and de-
tergent and ensure that they are leak-
proof.
Deaerate the appliance (see "Start-up")
Clean the fine filter.
Contact Customer Service if needed.
Detergent is not getting sucked in
Set nozzle to "CHEM".
Check/ clean detergent suction hose
with filter.
Clean/ replace backflow valve in the
connection of the detergent suction
hose.
Open or check/clean detergent dosing
valve.
Clean the deaerating hole of the deter-
gent tank in the casing.
Contact Customer Service if needed.